Luis Ferdinand Vega Jr. (born June 12, 1965), better known as "Little Louie" Vega, is an American DJ, record producer and remixer of Puerto Rican ancestry. He is one half of the Masters at Work musical production team.[1]

By 1985, Louie began playing house and block parties in his local Bronx and his first nightclub residency was at the Devil's Nest, in the Bronx, and later he moved to hearthrob (the old Funhouse), Roseland, Studio 54 and the Palladium in Manhattan. During the 1990s, Vega was playing at one of the most influential nightclubs for house music, The Sound Factory Bar at the Underground Network Parties with promoters Don Welch and Barbara Tucker (also singer). During this time, production team Masters at Work began a remixing team which consisted of young producers "Little Louie" Vega and partner Kenny "Dope" Gonzalez. By 1993, in just a few years, Masters at Work established themselves as one of the top remixers in the world.

Vega's uncle is salsa vocalist Héctor Lavoe, while Gonzalez's father, Hector Torres, also performs salsa.[3] Vega is also the cousin of Eric Vega, a popular event creator and promoter in New York City. Louie Vega is presently married to vocalist Ana Martins, also known as Anané Vega.